[Tagging] Using route=road to group the segments of a street (was: Re: Reasons for associatedStreet?)

[Nathan Edgars II]

On Wed, Sep 1, 2010 at 5:19 AM, David Paleino <dapal at debian.org> wrote:
> On Wed, 1 Sep 2010 05:09:22 -0400, Nathan Edgars II wrote:
>> Why is a route relation needed to group the segments of a street?
>
> I'm using that because I consider "Foo Avenue" as a logical unit, a
> "route", even if the way is split (because of oneways, different
> classifications, different tags, whatever).

But why does this "logical unit" need to be grouped in a relation? I
don't see any benefit to it.